Carriage-jack



(fie Model.)

W. S. GIBSON & L. STONE.

CARRIAGE JACK.

No. 362,075. Patented May 3, 1887.

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UNITED STATES PATENT OFFICE.

\VILLIAM STEDMAN GIBSON AND LIVINGSTON STONE, OF GHARLESTOWN,

NEW HAMPSHIRE.

CARRIAGE-JACK.

SPECIFICATION forming part of Letters Patent No. 362,075, dated May 3,1887.

Application filed February 14, 1887. Serial No. 227,528. (No model.)

To all whom it may concern.-

Be it known that we, WILLIAM STEDMAN GIBSON and LIVINGSTON STONE, ofCharlestown, in the county of Sullivan, of the State of New Hampshire,have invented a new and useful Improvement in Carriage Jacks; and we dohereby declare the same to be described in the following specification,and represented in the accompanying drawings, of Which Figures 1 and 2are opposite side elevations, Fig. 3 a vertical and transverse section,and Fig. 4 an edge elevation, of a jack embodying our invention, thenature of which is defined in the claim hereinafter presented.

In the drawings,A denotes a fiat base, having extended upward from it astandard, B, which, in horizontal section, is rectangularin form.Against the rear side of the said standard is a movable piece orelevator, 0, having at its top a flight of steps or series of rises andtreads, as represented at a. A stud, 2), pro jects from the standard Bthrough a slot, 0, made longitudinally in the elevator, such stud andslot being to determine the distances of either rise or fall of theelevator. From each of the two opposite longer edges of the standard twoclasps, d, project and lap on the rear side of the elevator and servenot only to keep it in place relatively to the standard, but to guide itin its vertical movements.

Fastened to the elevator, near its lower end, is a belt, f, which passesupward within a recess or groove, 9, made in the elevator on its frontside, and thence through an opening or hole, h, in the standard, andpartly around a small wheel, 2', arranged within the opening and pivotedtherein, so as to be capable of freely revolving. From the said openingthe belt f extends downward and is fastened to a hand-lever, E,fulcrumed at one end to the base A, so as to be movable upward anddownward, as well as toward and away from the standard-that is, eitherunderneath or away from a triangular catch, it, fixed to and projectingfrom the standard and arranged there- 45 with, as represented.

On the elevator being depressed to its lowest position, the lever willbe raised to its highest one. By taking hold of the lever and forcing itdownward the elevator will be moved upward, and may be held in itsraised position by turning the lever directly beneath the catch.

To use the jack, it, with the elevator depressed, is to be placed underthe axle of a carriage, with such axle directly over one of the stepsofthe elevator, which having been done the lever is to be forceddownward and under the catch, the carriage in the meantime rising upwardwith the elevator, so as to cause the wheel next to which the jack maybe to be raised off the ground or floor on which the carriage may stand.

We do not claim, broadly, a carriagejack consisting of a standard andbase, a stepped elevator to slide on the standard, and means for forcingsuch elevator upward relatively to the standard; nor do we claim alifting-jack constructed as represented in the United States Patent No.100,828, composed of a roller, ratchet-wheels, pawls, lever, rope, andhook, and two standards.

We claim- The combination, substantially as described, consisting of thestandard provided with the base and the catch and having the hole andwheel arranged in it, the said standard, as shown, and also of thestepped elevator and the belt and lever arranged with and applied to theelevator, the standard, and the base of So the latter, all beingessentially and to operate as set forth.

WILLIAM STEDMAN GlBSON. LIVINGSTON STON Witnesses:

GEORGE OLCOTT, HERBERT W. BOND.

i. V I

